England are in advanced talks with Ireland about playing a four-day test at Lord's next July, before the Ashes series. It would be England's first test against Ireland and their first four-day test since 1971.
The test is viewed by England as an essential part of their preparation for the Ashes. The 2019 series is expected to begin only 11 days after the World Cup final at Lord's.
For those who play both formats, it is likely to be their only first-class game in the five months before the Ashes. The probable dates of the test would be July 18-21.
The England and Wales Cricket Board is keen to trial four-day tests, with chairman Colin Graves and chief executive Tom Harrison publicly supporting plans to explore the concept.
For home boards, four-day tests are cheaper - virtually all tests, even in England, lose money on the fifth day.